Home / 497,631.60-746,447.40-272,905.20

Finding the Fourth Proportional to 497,631.60, 746,447.40 and 272,905.20

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Solution

The fourth proportional to 497,631.60, 746,447.40 and 272,905.20 is: 409,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,631.60 : 746,447.40 = 272,905.20 : x
  2. Step 2: Convert to fraction form
    497,631.60/746,447.40 = 272,905.20/x
  3. Step 3: Cross multiply
    497,631.60x = 746,447.40 × 272,905.20
  4. Step 4: Simplify right side
    497,631.60x = 203,709,376,986.48
  5. Step 5: Solve for x
    x = 203,709,376,986.48/497,631.60
  6. Step 6: Final answer
    x = 409,357.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.